Heater.



No; 850,818. PATENTED APR. 16, 1907. E. G. M. CAPE & R. J. DURLEY.

HEATER.

APPLICATION FILED MAY 2, 1904.

2 SHEETS-BRIGHT 1.

BK-hum co PATENTED APR. 16 E. G. M. CAPE & R. J. DURLEY. I

HEATER.

APPLICATION mum IAY2,1904.

2 SHEET8BHEET 2,

witueooeo may be said to consist of a stationarvmemberfadapt-ed to form one wallet thefluc or which constitutes the fine or passage and the be inspected and "cleaned. or repaired, the

of the flue o passagopand means for supporthi. the same.

[O I in a -ers for use in connection with the heating of temperatures and high pressures, will give' UNITED STATES PATE OFFICE.

EDMUND eRAvssMe-nnpirn CAPE AND Riel-MR1) onNnURLE or MONTREAL, oorenno, CANADA.

HEATER.

Specification of Letters Patent. Application filed May 2, 1904. Serial No. 206,083.

' Patented n rilie eo r.

To all whom it mk y concern:

- Be it "known: that we, EDMUND GRAVES lVIEREDITII CAPE and RICHARD Jon-1v DURLEY, both of the city of Montreal, Province of Que bec, Dominion of Canada, have'invqntedcertain new and useful Improvements Heat ers,' an'd We do hereby declare that thefollowing is-a full, clear, and exact description Our invention relatesparticularly to heat compressed air or the superheating of steam, although the principal features thereof may he applied with advantage to other than conipressedgair heaters or steam-superheaters.

The invention has for its ob'ect toprovidea heater which will be more durable at high higher efficiency, and be more cheaply constructed and more easily kept in order andcleancd than has beenthe case with heaters l'ieretofore.

()ur invention may he said, briefly, to consist of a heater comprising a spiral flue or passage having one or more spiral tubes therein and supported above the floor thereof with means for causing the heated gases ,of com-. bustion to he"dirccted into contact with the tubepr tubes.

More sp'ecificallj speaking, the invention passage andv to support the main parts of the I, enter and a removable member forming with the stud. stationary member the nclosure removal whereof enaliles the'parts supported by the permanent or stationary-"inemhcr to main parts consisting,prefcrab'hv, of :1 spiral plate constituting twoof the opposlte walls located a short supported upon theportion of th 1). within the cylindrical section Z. ifiYllJlii'iiCil section 11 restsin thegroove," e and: the upper endithereof pmjects into groove h 1 in the under side of the capping pl-ate and,

vlindricsil section-sup- '9 invention reference mustbe hadto theacco'mforming a part oftbis specification, in winch sim lar reieren co, charactors indicate the same parts, and wherein- Figure l is part front elevatmnand a part longitudinal vertical sectional view ofa heater constructed according to'our invention. Fig. 2 is a part plan view and part horizontal sectional view thereof, the sectional view being taken on line AA, ig. 1 Fig. 3- is' a detail sectional view illustrating the man- .ner of securing our re and Figs. 4 and 5 are perspective views of the movable door in place, v

fire-bricks located in the upper and lowerlportions, respectively, of our improved fire- According to the preferredembodiment of our-invention, the base-plate b is of annularyo form and has an annular'recess or groove '0 in its under side concentric to the opening there in, and its upper. side has a series of three grooves or recesses'also concentric to the c'entral opening. The first, (i, of these grooves is 7 5 distance from the central opening, and the others,- 6 andj', respectively, are located a :short' distance from the outer edge, and a ca .)ping -plate gis forme'din its underside with a pair of grooves 71 and i, cor- 8c responding in dia'ineterandposition' to thegrooves e and j. The inner edge of this ca pilig-plate has an ontwardly-ilare'd annular flange j, within the upperend of which rests A cent'i'al cylindrieal8 member [stands-in thegr'oove d and extends I quarters .(i l'the 'idis- .ta-nce 'hetu'een the base-plate [ha-11d ea ping-1" areniovable cover If.

ujmardly about three? pl ate 9 and hasa "lire-brick ,lini'i'ig w lChlS together with a'third pin the said cappinkpla'te, such/third cy- Q lind ricalsection being indicate-date and resting in-thc groovefin the lmse-piatelij while the groove '5 of the capping-"plate'fitsupon its,

up ').er end. A series of bol'ts'j) secure the capping-plateifQlQd"cylindrical base-plate, sections 11 and 0 together, and dining-plate g of aimulzuform is supporte'dfupoii the outunrdl v-llang'ed lower end 1' of the annular flange y', while-it is suppg-jirted .near its OPpO-e site edge by bolts s, encircler'l by tubular dise hase-plate '0" "A second:

. q, and capping plate g, are filled with asbestos pipes extends through the wall of the heater.

tance- 'iieces t. The'spaces between the cylindrical members a and o and the lining-plate or other non-heat-conducting material.

The spiral line or passage is constituted by I the cylindrical sections 1 and n, and a spiral late 2 located between them and extending ronione to the other, such spiral plate being supported at its inner edge by a series of ang e-iron brackets 3, riveted or otherwise secured by one leg to the cylindrical member I and b the other leg-to the inner ed e of such spiral plate. (four are indicated, although more or less may be 'used, according to requirements) are wound into the spiral line or passage 6, constructcd as above described, and V ported above the floor (constituted .by spiral plate 2) of the flue by a series of preferably radially-disposed T-irons 7 resting upon the floor and a second seriesS resting upon the s'ccond'to top convolution of the series of pipes, the latterseries of T-irons' sup orting the uppermost convolution, while t e balance of 'the'pipes is supported upon the other, the T-irons 7. One end of, this series of near its upper end, as at 9, and the opposite end extcn through the-lower end of said wall, as at 10, wl1ile the pipes at'each end are con ledto a common. head, (indicated at 1-2 an 13,resp.ectively.-) Achirnney connection is located near the lower end-of the casin I and amanhole extending approximate extending from-the bottom to the top of the casing is out therethrough and provided with a removable cleaning-door 16, having a series of handles 17, with looking devices 18- on their inner ends, said. locking devices consisting of curved bars adapted to engagecrciss-bars 19 across the inner side of the manhole. I

Our improved'fire-box section consists of a v cyliudricalwall member 25,'having an in wardly rejecting radial flange 26.;at its lower end an a similar flange" 27 but of greater width, pro'ecting from the wall near thenp per end thereof, thereby providing spaces separated from one another, one between the .5

flange 27 and the top of the fire-boxsectjon and the other between such flange and the flanqe 26, the first mentioned space accommodlatin the series of hor zontal fire-bricks 30 and t e second-mentioncd space accommodating the second series of fire-bricks ,31. This construction of fire-box enables either series of fire-bricks or any portion thereof to be removedand new ones inserted without disturbing the other section, and'the'fire-box section is provided with'an asbestos jacket 35,

similar to that upon the body of the heater,

and afirc-door 36 of usual construction,

while the cappii' g plateand cover k are also provided with a-covering 37 of asbestos.

The ash-pil section 2() may be of any-pre- A series of spiral to es 5 l motion, of a combustion-chamber to longitudinally through thoroughly cleaned without the removal oi,

the/former or of the spiral plate by removing the capping-plate and the inc-losing cylii drical sections n and 0, the tubes and plate being mounted upon the stationary inner cy' lindrical member-.for'the purpose.

We do not claim the s ecii'ic fire-boxherein illustrated and dcscri ed, as it forms the s'ubect' natter of a separate application.

but we claim is as follows: 1. In a fluid-heathr, the combination with a combustion-chamber and a chimney conspiral flue or passageleading from the combustion-chamber to the chimney connection, and a fluid-conducting sec-f tion extending throughthe interior of the spiral flue or passage, and means in contact t rou hout its length with one of the walls of such ue' for deflecting the current of heated gases of combustion as'they flow throu h such spiral flue or passage and causin t c gases to come into contact with the uid conducting section.

-2. In a fluid-heater, the combination with a combustion-chamber, a chimney connection, and a flue or passa e leading from the combustion chamber-to ti tion, of a fluid-conducting section extending through the interior of the fine-or passage, and means in parts or'other minor changes made without 10 chimney conneccontact throughout its length. 'with one of the walls of such flue for deflecting thecurrent of heated gases of combustion flowing through the flue or passage and cans ing the same to come in contact wl th the fluidconducting section.

3. In a'fiuid-heater, the combination with acombustionphamber, a chimney connection, and'a fine or pass e leading from the t 'e chimney connection, of a fiuid-conducting sect? nger. ending the interior of the fine or passage, and means independent of and supporting theIfiuid-conducting section above the floor of such flue or passage, such means in contact throughout its length with one of the walls of such flue acting as deflec tors for mixing the current of heated gases of combustion'flowing through the-flue or passage and causing the same to come in contact with the fluid co'nducting section for the purpose set forth.

4. In a heater, the combinationwith a fire- I chamber, a cylindrical member communicat v with the-end of the cylind site tothe fi1e-chamber the said spiral flue or passage communicating at its other end with the chimney connection, and means whereby *outlet for the ing at one end with the fire-chamber, a chimney connection located adjacent to the fireohamher, and means separating the chimney connection from the fire-chamber a spiral flue or passage connnunicating-at one end rical member oppo- I or passage communicating at; its uppef end with the u per end of the elongated combustion-chain er, and at its lower end with the clnmney connection and means whereby the heat emanating from the heated gases of combustion flowing through the flue or passage is'taken up. i

6. In aheater, the combination with a ver 'ticaliy elongated combustionchamber, a

chimney ccnnection located on a level with the lower'end thereof and separated therefrom, of a vertical spiral flue or passage com ni'unicating at its upper end with the upper end of the elongated combustion-chamber; and at its lower end with the chimney con nectionv and means whereby the heat emanating'from the heated gases of combustion; Homing through the flue or passage is taken up.

. 7. In a heater, thec ombination with a ver-' tical elongated cylindrical combustion-chamher, of a spiral plate Wound around the err-- terior of the cylindrical chamber, an inclosing casing encircling and fitting closely the outer edge of the spiral plate, the spiral flue orpassage thus formed communicating at its upper end with the'upper end of the combustionchamberfand at its lower end. with a chimney connection "communicating with the lower end of theinclosing casing, and means whereby the heat emanatingfrcm gases of comhustion flowing through the line taken up. p 8. In a heater, the con ihination with a ver- -tical-el-ongate(.l cylindrical. com bustion-cham' her, wasplraiplate woundaround the ex- .terlor of the cylindrical chamber, means socuring the inner edge of the spiral plate rigidly to the cylindrical chamber, an inclosing- @(jlgo'of the s n'ral pl c .mncct1on near the lower end thereof, the

casing encircling and fitting closely the outer ate and having a chil'nnoy spiral line or 'iassagc thus formed omnmunicating at its upper end with the upper end of the co]nbusf-iollschamherand its lowcrcnd with the chimney connection, and means whereby the heatemanating'irxm1 the heated or passage is mg casing,

: I l l I gases of combustion. flowing through the fine or passage is taken up.

9. .ln aheater, the combination with a vertical elongated cylindrical comlmstion-chamher having a lire-brick lining, of a spiral plate wound around the exterior of the cylindrical chamber, means securing the inner edge of spiral plate rigidly to the cylindrical combustion-chan'iber, an inclosing casing encircling and fitting closely the outer edge of the spiral plate and having a chimney connec- .t1on near the lower end thereof, the spiral flue or passage thus formed communicating at its upper end with the upper end of the combustion-chamber= and at its lower, end with the chimney connection and a nonheat conducting jacket encircling the said inclosand means whereby the heat emanating from the heated gasesof combus tion flowing taken up.

10. In a heater, the combination with a through the flue JOI passage is verticalelongated combustion-chamber, of a spiral plate wound around the exterior of the cylindrical chamber, IneansJ-securing-the inner edge of the-spiral plate rigidly. to the cylindrical combustion-chamber, an inclosing casing encircling andfitting closely the outer edge of the'spiral plate and having a chimney connection near the lower end thereof, the spiral fiue or passage thus the upper end of the combustion-chamber and at its lower end nection and a fluid-conducting section extending in connection with and subjected to the heat emanating or passage.

11. In a heater, the comhination'wi'tha vertical elongated cylindrical combustion-- chamber, of a spiral plate wound around the exterior of the cylindrical chaniber, means securing the inner. edge 'of the spiral plate rigidly "to the cylindrical coxhlmsticmch'amher, an inc-losing casing encirclingand fitting closely the outer edge of the spiral .plate and having a chimney connection near the lower end thereof, the spiral line or passage thus formed communicating at its upper end with the combustion-chambcr and at its lower (Hid: with-tho chimney. connection. and a series of 'lhdd conducting 0] one another, and subjected to the heat cmanatil'lg from the productsof combustion l lowing through such spiral flue or passage.

12. in a br-atongthc combination with a vertical elongated cylindrical"combustiom chamber, ol a spiral plate wound around. the exterior of the cylindrical chambermeans securing the inner cdgool' the spiral plate rigidlyto the cylindrical colnlYustion-cham- )cr-, an inclosing casing enidrclingand fitting oscly the outer edge of tho' spiral plate and with the chimney vconfrom the products oi combustion flowing through such spiral flue.

section's independent 9 formed communicating at its upper end'w1th closely the outer edge and at its lower end vertical elongated cylindrical combustion chamber, of a spiralplate wound around the exterior of the cylindrical chamber, means securing the inner edge of the spiral late rigidly to the cylindrical coinbustionwc amher-, an inclosing casing encircling and. fitting of the spiral plate and havin 'ta chimney connection near thelower end thereof, the spiral'llue or passage --tl1us formed communicatingatits upper end with.

the upperzend of the combustion-chamber with the chimney connection, and a fluid-conducting section exand at its lower :end with tendin in connection with and subjected to the eat-emanating from the products of combustion flowing through the spiral flue or passage, and means for deflecting the current of heated gases of-combiistion as they flow through the spiral flue or passage and causing the gases to come into contact with such fluid-conducting section.

14. 111 a heater, the. combination with a Vertical elongated cylindrical combustionchamber, of a spiral plate wound around the exterior of the cylindrical chamber means securing the inner "edge of the spiral plate rigidly to the cylindrical combustiomch'am her, an niclosing casmg' encircling and fitting closely the outer edge of thespira-l plate and having a chimney connection near the lower end thereof," the spiral fine or passage thus formed communicating at its upper end with the upper end of the combustion-chamber the chimney connectlon, and a spiral flunl.conductiug section extending longitudinally through the interior of the spiralfi 'ue or passage, and'means fordefiectm the current of heated gases ofcombustion iiowing through the iluef or passage and causing the same to come in contact with closely the outer such fluid-conducting section. 1

15, In a heater, the combination witha vertical elongated cylindrical combustioncharnb'er, of a spiral plate wcun d around the exterior of the cylindrical chamber means so- -curing the inner edge of the spiral plate rigidly to the cylindrical combustion-charm her, an inclosing casing encircling and fitting edge of the spiral plate and. having a chimney connectionnear the lower spiral flue or passages thus formed communicating at its upper end with the upper end of the combustion-chamber and at its lower end with the chimney con nection, and a spiral iluid-conducting section extending longitudinally the inner plate through the interior of the spiral line or passage, and means supporting the fluid-conducting section above the floor of such flue or passage.

16. A heater consisting of an annular base plate, a cylindrical member of slightly greater diameter than the opening. in such annular baseplatcand supported upon the latter concentrically to the opening therein, a

fire-brick lining within the cylindrical memher and resting upon the portion of the baseplate within the same, a spiral plate wound the spiral plate, a tubular fluid-conductor of spiral form. wound around the cylindrical member within the'spiral space formed by' the spiral plate and having one end terminating above the level of drical. member, and its other end located near the bottom of the latter, such spiral tube resting upon the inverted-T irons, a cylindrical member encircling and fitting. closely the outer edge of the spiral plate and. sup ported upon the annular base-plate, and a capping plate supported upon the last-incritioned cylindrical member, a chimney connectionj leading from the inclosing cylindrical member, and means whereby the ends of the spiral tubular conductor are connected to piping outside of the heater.

the top ofthe cylin 17. A' heater consisting of an annular baseplate, a 3 cylindrical member of slightly-- greater diameter than the opening in such annular base plate and supported upon the latter ci mcentrieally to the opening therein, a iirebrick lining within the cylindrical member and resting uponjthe portion of the, baseplate Withinthe horizontally and wound around the exterior of the cylindrical member, means securing edge of the spiral plate rigidly to the cylindrical member, a series of inverted- T irons supported upon the spiral? plate, 'a series of. tubular fluid-conductors of spiral form wound around the cylindrical member within the spiral space formed by the spiral plate and having one end terminating above the level of tlie'top of the'cylindricai ine1nher, and its other end located near ihe l tom of the latter, such spiral tu upon the inverted-T irons, member encircling and fitting, closely the outer edge of the spiral plate and su 'iported upon the annular base plate, and a capping supported upon the lastnnentioned 57 lindrical member, a chimney a lment-ion leading from the inclosing cylindigirel memher, and means whereby the curls of the series of tubular conductors are connected to piping outside of the heater.

18. A heater consisting of an annular base-plate, a cylindrical member of slightly greater diameter than the opening in the ansame, a spiral plate disposed a cylindrical means whereby the ends of the spiral tubular swans ynular basc-plate and; supported upon the latter concentrically to the opening therein',-'

a iire-briclc lining within the cylindrical memher and resting upon the portion'ctthe base plate within the same, a spiral plate disposed orizontally. and Wound around the exterior of the cylindrical member, means securing the inner edge of the spiral plate rigidly to the cylindrical memher,' ,a series of 1nverted-T irons su ported npo'nthe spiral plate, a tubu- .lar flui -.conductor of spiral form Wound around the cylindricalmember Within the spiral space formed by the spiral plate and. having oneend terminating above the level of the to of the cylindrical member, and its other an located near the bottom of the latter, such spiral tube resting upon the inverted- T irons, a cylindrical member encircling and fitting closely the outer edge of the spiral plate and supported upon the annular base plate, an annular capping-plate su ported upon the last-mentioned cylindricamemher, a cover for theopening in the annular cappi plate, a-chimney connection leading from t e inclo'sing cylindrical member, and

conductor are connected to piping outside of the heater. 1

19. In a heater comprising a spiral plate, a spiral fluid-conductir1g section, and a pair of cylindrical members forming with the spiral plate a spiral flue or passage, and means whereby the spiral plate and spiral fluid-con ducting section a e supported by one of the cylindrical members independently of the other cylindrical member, a base-plate for supporting the cylindrical member, and a capping-plate extending across and closing the top of the outermost cylindrical'inember with a space therebetween and the to of the innermost cylindrical member for tie purpose set forth.

20. In a heater comprising a spiral plate, a

spiral fluid-conducting section, extending parallel to the s iral plate and above the same, and a pair 0 cylindrical members form ing with the spiral plate a s iral flue or pas sage inolosing the spiral flui -conducting section, and means whereby the spiral plate and spiral fluid-conducting section are su ported, a base-plate for supporting the cy indrical' member, and a capping plate extending across and closing. the top of the outermost cylindrical member with a space there'between and the top of the innermost cylindrical member, the outer cylindrical member'having an elongated hand-hole therein, and a re- 

